Yokogawa Standalone MW100 - Manual (Page 68)

1-54
IM MW100-01E
1.13 Operation of the 8-CH Medium-Speed Analog
Output Module and the 8-CH Medium Speed
PWM Output Module
The following describes the output operation of the analog and PWM output modules.
Output upon Startup, Error Occurrence, and Stopping *
* Firmware version R3.03 or later
Output Selection Notation Actions
Hold previous value Last Holds the last value output.
Output preset value Preset Outputs an arbitrarily specified output value.
Output Format
In the output format below, current (analog output module) or pulse wave duty (PWM
output module) is output.
• Transmission output: Outputs analog or PWM according to the measured or
computed data from the measurement channel specified on the
same unit. All input modules can be specified (but not output
modules).
• Arbitrary output: When commands are received from the PC, the instrument
outputs analog or PWM signals accordingly.
Once the power is turned ON and the unit is able to perform communication, arbitrary
output becomes possible. For transmission output within a unit, after measurement or
computation starts, the output values are updated upon transmission output.
Output on Disabled Channels
Type of Disabled Channel Output
Channels changed from enabled to Holds the last output value when channel was
disabled through setting changes active
Channels invalid upon startup Output according to settings upon startup
The timing at which changes applied to the output module take effect is according to the
events below.
(Ex. When changing settings from transmission output within a unit to arbitrary output, the
last value of transmission output within a unit is held until the arbitrary output request is
generated.)
Output Operation per Settings and Setting Changes
Condition upon Power ON and Output Operation
Condition When Power Is Turned ON Output Operation
When Output Settings are Disabled Operation when power is turned ON
With transmission output within a unit, Before meas. start Operation when power is turned ON
and reference channels disabled
Start measurement Output upon error occurrences
Transmission output within a unit Before meas start Operation when power is turned ON
Start measurement Transmission output
Arbitrary output No output request Operation when power is turned ON
Output requested Arbitrary output